We've been quoted anywhere from $65K to $100K to add this to the home we are planning to build. Your number is much lower. Can you offer any suggestions as to why it might cost so much more? This is near Cleveland, OH.

It could very well be the design. There are many ways to do this, which requires experience designing this type of space to make it more cost efficient.

Perhaps your design needs a review.

My pleasure, I am happy to help. As an architect I believe it's the role of your architect to help you with this question. Depending on his/her experience and expertise in this area, you may get the right advice and strategy on how to get there.

Some of the cost saving tips may include but not limited to; Avoid foundation walls higher than 9' if underground. Try a "walk-out basement" as the type of lot you plan to build on. Use the slope of such lot to assist you with this objective. Use engineered wood trusses for the roof structure.

Of course every project has its own unique conditions to deal with, so unless I am able to see yours, I would not know what other strategies will deliver the highest outcome.

Although long distance, in these times of connectivities, you may want to consider collaborating with us as your architect/consultant. We'll be happy to help.

Here is the exterior of one similar to what I have described. Sports court is on the far right side.

Thanks so much for your advice. As we move along in the process, I may be in touch.

I would think that the unsupported wall would be more difficult than the wall being underground, no? One builder we've been talking to has built a number of these types of sport courts in the basement level up to first floor and $65K is their number. The other builder has not done one yet, but the architect connected with that project has worked on a few.

There are always variations, based on your lot, design, finishes, etc. that will affect the final cost. As for the unsupported wall comment, not necessarily so. The framed walls are engineered and constructed to code will be solid. The foundation wall/below ground is more expensive as is retaining the soil.